'Cuts Kill' might sound like polemic hyperbole, but the cause-and-effect is clear: if TfL cuts its road safety budget, as is suggested in this news article, more people will die and be seriously injured. If that were not the case, then the money's currently being wasted.
John Biggs MLA is reported to have said:
"We are already hearing that TfL will not be able to spend as much on lower priority areas, such as road safety and smarter travel."
The irony is, of course, that crashes are very expensive indeed, so reducing the road safety spend will end up costing the NHS and central Government money.